Manchukuo

Manchukuo was a client state of Japan which existed from 1932 to 1945. It was established in occupied Manchuria with the deposed Chinese emperor Puyi as its head of state, but he was nothing more than a puppet of Japan. Manchukuo lasted for thirteen years, ending when the Soviet Union's Red Army invaded Manchuria at the end of World War II in August 1945, destroying the hastily-assembled Imperial Japanese Army troops stationed in Manchukuo.